Nearly a third of families have savings which will run out within five days if they are faced with a financial emergency, research has found.
Some 31% of those surveyed said they have less than £250 set aside as a safety net if something goes wrong, an increase from 28% when a similar study was carried out last year, HSBC said.
Average monthly household outgoings stand at £1,669, equating to just under £55 a day, meaning that a £250 savings pot would run out within five days.
A fifth of households (19%) said they have nothing to fall back on at all and another 12% said they have less than £250 stashed for a rainy day.
The study found one in three families couldn't last a week on their savings
People are generally recommended to build up a minimum of three months of take-home pay as a "salary cushion", which would typically amount to £5,756.
But the prospect of soaring energy and food bills and increases to some mortgage costs will make it even harder for people to put any cash away in the run-up to Christmas.
Meanwhile, the vast majority of savings accounts are still failing to keep pace with living costs.
Some 28% of those surveyed said they would be unable to cover their rent or mortgage if they unexpectedly lost their income, while one in 10 said they would be forced to rely on a personal loan, credit card or an overdraft.
More than 1,000 households took part in the study across the UK.
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